Placer mining in Alaska, California & Colorado

Placer mining in Alaska
A great part of the gold production in Alaska is obtained from the placers in the area, but mostly from the ones that can be found in the Yukon River Basin, even though the deposits are known on almost all of the most important rivers and their tributaries. The beach deposits in the areas of Nome are some of the best known of as well and the river and terrace or bench placers in the drainage of the Kuskokwin and Copper Rivers. The climate and the conditions are very important when it comes to mining in Alaska, and the best hydraulicking times do not last very long.

Placer mining in California
California is perhaps the best known of gold producing area in the entire world. This state has a great many areas that are interesting for prospecting especially the gravels that have become richened by the Mother Lode of gold deposits, which is a strip of mineralized rock that is one to four miles wide and that runs 120 miles along the low western flank of the Sierra Nevada, and goes through five very known of places which are Amador, El Dorado, Calaveras, Tuolumne, and Mariposa. The ancient channels and gravels in the Sierra Nevada Range are areas that were very gold productive.

Colorado placer mining
Some of the most important placers that were the residual type in Colorado were found in the hillsides and slopes right near the gold veins. Nonetheless, the placers in Colorado are in most cases contained in the narrow canyons under the lode gold areas inside of the Rocky Mountains in a belt that goes across the west part of California. Nearly all of the gold districts have a quantity of placer gold. A lot of the streams that come from the Front Range, like the South Platte River as well as the Arkansas River and its tributaries upstream as California Gulch have placer gold in them. In the past, placers used to be mined first and this brought about the development of the rich lodes in Colorado.